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Vatica ridleyana Brandis

Family Name:	Dipterocarpaceae
Synonyms:	Pachynocarpus ridleyanus (Brandis) J.W.Anderson
Common Name:	Resak Buah Kana

Vatica ridleyana or Resak Buah Kana is a medium sized Dipterocarp tree native to Singapore. It has leathery leaves with curved veins that are prominent below and cream white inflorescence along the nodes or tips of the branches. The fruit is a spindle-shaped, coarsely warty nut with small thickened calyx lobes attached to the bottom.

Full Sun

Moderate Water

Native to Singapore

Tree

Name

Family Name
Genus Epithet
Species Epithet
Name Authority
Synonyms
Common Names
Comments
Species Summary

Classifications and Characteristics

Plant Division	Angiosperms (Flowering Seed Plants) (Dicotyledon)
Plant Growth Form	Tree (Medium (16m-30m))

Biogeography

Native Distribution	Malesia
Native Habitat	Terrestrial (Primary Rainforest, Secondary Rainforest)
Preferred Climate Zone	Tropical

Local Conservation Status

Native to Singapore (Critically Endangered (CR))

Description and Ethnobotany

Growth Form	It is a medium-sized tree with brown finely wrinkled twigs 2 - 3 mm wide.
Foliage	Leaves are simple, leathery, elliptic to narrowly egg to spoon-shaped, measuring 6 - 14 cm long by 3 - 7 cm wide, held on short petiole, 8 - 15 mm long. The leaves has a dull underside, slightly rolled in leaf margins and curved veins that are prominent below. The young parts tend to be covered in powdery downy hairs which quickly falls off.
Flowers	Flowers are cream white, borne on an inflorescence along the nodes and tip of the branches. The buds are spindle-shaped, 7 cm long by 2 cm wide.

Fruit	The fruit is held on a short, stout stalk. It comprise of a spindle-shaped, beaked, coarsely warty nut, 4.5 cm long by 1.8 cm wide and small but thickened calyx lobes that are attached to the base of the nut.
Habitat	Occurs in mixed Dipterocarp forest at low altitudes. <1>
Cultivation	It can be propagated by seed.

Plant Care and Propagation

Light Preference	Full Sun
Water Preference	Moderate Water
Plant Growth Rate	Slow

Rootzone Tolerance	Moist Soils, Well-Drained Soils
Propagation Method	Seed

Foliar

Foliage Retention	Evergreen
Mature Foliage Colour(s)	Green
Mature Foliage Texture(s)	Leathery

Foliar Type	Simple / Unifoliate
Foliar Arrangement Along Stem	Alternate
Foliar Attachment to Stem	Petiolate
Foliar Shape(s)
Foliar Venation	Pinnate / Net
Foliar Apex - Tip	Acuminate, Acute
Foliar Base	Cuneate

Non - Foliar and Storage

Trunk Type (Non Palm)	Woody
Stem Type & Modification	Woody
Root Type	Underground (Tap Root)

Floral (Angiosperm)

Flower & Plant Sexuality	Bisexual Flowers , Bisexual Flowers
Flower Colour(s)	Cream / Off-White

Flower Grouping	Cluster / Inflorescence
Flower Location	Axillary, Terminal
Flower Symmetry	Radial
Inflorescence Type	Cyme, Raceme
Flowering Habit	Polycarpic

Fruit, Seed and Spore

Mature Fruit Colour(s)	Brown
Mature Fruit Texture(s)	Rough
Fruit Classification	Simple Fruit

Fruit Type

References

References	<1> Ashton, P.S. (1982). Vatica. In: Ashton, P.S. (ed.) Dipterocarpaceae. Flora Malesiana, ser. 1, Seed Plants, vol. 9, pt. 2, pp. 352. Leiden: Rijksherbarium.

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Master ID	34314
Species ID	8727
Flora Disclaimer	The information in this website has been compiled from reliable sources, such as reference works on medicinal plants. It is not a substitute for medical advice or treatment and NParks does not purport to provide any medical advice. Readers should always consult his/her physician before using or consuming a plant for medicinal purposes.